Omron 3G3RX - Page 33

2-8
2-2 Wiring
2
Design
Terminal
symbol
Terminal name Description Specifications
Digital (contact)
Contact input
RUN command
FW Forward rotation
command terminal
When the FW signal is ON, the motor runs
forward. When it is OFF, the motor decelerates
and stops.
[Contact input ON
condition]
Voltage between
each input terminal
and the PLC terminal
:18 V DC or more
Input impedance
between each input
terminal and the PLC
terminal: 4.7 k
Allowable max.
voltage:
Voltage between
each input terminal
and the PLC terminal:
27 V DC
Load current at 27 V
DC power supply
voltage:
Approx. 5.6 mA
Function / Selection
1
2
3
4
5
6
7
8
Multi-function input Select 8 functions from among the 61 functions
and allocate them to terminals 1 to 8.
Note: Only terminals 1 and 3 can be used for the
emergency shutoff function. For details,
refer to "Emergency Shutoff Function"
(page 2-9).
PLC Multi-function input
common
The sink and source logic for contact input can
be switched by connecting a short-circuit bar on
the control terminal block.
Short-circuiting P24 and PLC  Sink logic,
Short-circuiting PLC and CM1  Source logic
To activate contact input via an external power
supply, remove the short-circuit bar and
connect PLC terminal to the external interface
circuit.
Open collector output
Status / Factor
11
12
13
14
15
Multi-function output Select 5 functions from among 45, and allocate
them to terminals 11 through 15.
If an alarm code is selected in C062, terminals
11 to 13, or terminals 11 to 14 always output an
alarm factor code (e.g. Inverter trip). The signal
between each terminal and CM2 always
corresponds to the sink or source logic.
Between each
terminal and CM2
Voltage drop 4 V
max. at power-on
Max. allowable
voltage: 27 V DC
Max. allowable
current: 50 mA
CM2 Multi-function output
common
Common terminals for multi-function output
terminals 11 to 15.
Digital (contact)
Relay output
Status, alarm, etc.
AL2
AL1
Relay output Select the desired functions from among 45
functions, and allocate them. SPDT contact
output.
By factory default, the relay output (AL2, AL1)
contact selection (C036) is set at NC contact
between AL2-AL0, and NO contact between
AL1-AL0.
Contact max.
capacity
AL2-AL0
250 V AC, 2 A
(Resistance)
0.2 A (Induction)
AL1-AL0
250 V AC, 1 A
(Resistance)
0.2 A (Induction)
Contact min. capacity
100 V AC, 10 mA
5 V DC, 100 mA
AL0 Relay output
common
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